Support [os_brick] options

Cinder now supports configuration os-brick specific lock_path. This
adds the new class to manage the [os_brick] option.

Depends-on: https://review.opendev.org/849325
Depends-on: https://review.opendev.org/865771
Change-Id: I72a1cf7b982e96665b1d05170da223ebc4148281

manifests/os_brick.pp

@@ -0,0 +1,18 @@
+# == Class: cinder::os_brick
+#
+# Configure os_brick options
+#
+# === Parameters:
+#
+# [*lock_path*]
+#   (Optional) Directory to use for os-brick lock files.
+#   Defaults to $::os_service_default
+#
+class cinder::os_brick(
+  $lock_path = $::os_service_default,
+) {
+
+  oslo::os_brick { 'cinder_config':
+    lock_path => $lock_path
+  }
+}

releasenotes/notes/os_brick-cbe9075c663bb2a8.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The new ``cinder::os_brick`` class has been added. This class manages
+    the ``[os_brick]`` options.

spec/classes/cinder_os_brick_spec.rb

@@ -0,0 +1,41 @@
+require 'spec_helper'
+
+describe 'cinder::os_brick' do
+
+  shared_examples 'cinder::os_brick' do
+
+    context 'with defaults' do
+      it 'configures the default values' do
+        is_expected.to contain_oslo__os_brick('cinder_config').with(
+          :lock_path => '<SERVICE DEFAULT>',
+        )
+      end
+    end
+
+    context 'with parameters overridden' do
+      let :params do
+        {
+          :lock_path => '/var/lib/openstack/lock'
+        }
+      end
+
+      it 'configures the overridden values' do
+        is_expected.to contain_oslo__os_brick('cinder_config').with(
+          :lock_path => '/var/lib/openstack/lock',
+        )
+      end
+    end
+  end
+
+  on_supported_os({
+    :supported_os => OSDefaults.get_supported_os
+  }).each do |os,facts|
+    context "on #{os}" do
+      let (:facts) do
+        facts.merge!(OSDefaults.get_facts())
+      end
+
+      include_examples 'cinder::os_brick'
+    end
+  end
+end